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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes - (Except Hybrid) >> Airbag System >> DTC B1860-64: Short in Driver Side Knee Airbag Squib Circuit; DTC B1861-64: Open in Driver Side Knee Airbag Squib Circuit; DTC B1862-64: Short to GND in Driver Side Knee Airbag Squib Circuit; DTC B1863-64: Short to B+ in Driver Side Knee Airbag Squib Circuit [12/2013 - ] >> Description

DTC B1860-64: Short in Driver Side Knee Airbag Squib Circuit; DTC B1861-64: Open in Driver Side Knee Airbag Squib Circuit; DTC B1862-64: Short to GND in Driver Side Knee Airbag Squib Circuit; DTC B1863-64: Short to B+ in Driver Side Knee Airbag Squib Circuit [12/2013 - ]: Description

The driver side knee airbag squib circuit consists of the airbag sensor assembly and lower No. 1 instrument panel airbag assembly.

The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the driver side knee airbag squib circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1860-64 Short in Driver Side Knee Airbag Squib Circuit
  • The airbag sensor assembly detects a line short in the driver side knee airbag squib during primary check.
  • Driver side knee airbag squib malfunction
  • Airbag sensor assembly malfunction
  • Instrument panel wire
  • Driver side knee airbag squib (Lower No. 1 instrument panel airbag assembly)
  • Airbag sensor assembly
Applies to check mode
B1861-64 Open in Driver Side Knee Airbag Squib Circuit
  • The airbag sensor assembly detects an open in the driver side knee airbag squib.
  • Driver side knee airbag squib malfunction
  • Airbag sensor assembly malfunction
  • Instrument panel wire
  • Driver side knee airbag squib (Lower No. 1 instrument panel airbag assembly)
  • Airbag sensor assembly
Applies to check mode
B1862-64 Short to GND in Driver Side Knee Airbag Squib Circuit
  • The airbag sensor assembly detects a short to ground in the driver side knee airbag squib.
  • Driver side knee airbag squib malfunction
  • Airbag sensor assembly malfunction
  • Instrument panel wire
  • Driver side knee airbag squib (Lower No. 1 instrument panel airbag assembly)
  • Airbag sensor assembly
Applies to check mode
B1863-64 Short to B+ in Driver Side Knee Airbag Squib Circuit
  • The airbag sensor assembly detects a short to B+ in the driver side knee airbag squib.
  • Driver side knee airbag squib malfunction
  • Airbag sensor assembly malfunction
  • Instrument panel wire
  • Driver side knee airbag squib (Lower No. 1 instrument panel airbag assembly)
  • Airbag sensor assembly
Applies to check mode